Abrahamson Eric & Freedman David. (2006). Perfect Mess: The Hidden Benfits of Disorder. Phoenix Peparback.
Čikaški stil citiranja (17. izdanje)Abrahamson Eric i Freedman David. Perfect Mess: The Hidden Benfits of Disorder. London ,UK: Phoenix Peparback, 2006.
MLA način citiranja (9. izdanje)Abrahamson Eric i Freedman David. Perfect Mess: The Hidden Benfits of Disorder. Phoenix Peparback, 2006.
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